155 lines
4.8 KiB
Makefile
155 lines
4.8 KiB
Makefile
# $NetBSD: moderrs.mk,v 1.30 2021/06/21 08:28:37 rillig Exp $
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#
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# various modifier error tests
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'= '\''
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VAR= TheVariable
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# in case we have to change it ;-)
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MOD_UNKN= Z
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MOD_TERM= S,V,v
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MOD_S:= ${MOD_TERM},
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FIB= 1 1 2 3 5 8 13 21 34
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all: mod-unknown-direct mod-unknown-indirect
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all: unclosed-direct unclosed-indirect
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all: unfinished-indirect unfinished-loop
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all: loop-close
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all: words
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all: exclam
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all: mod-subst-delimiter
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all: mod-regex-delimiter
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all: mod-ts-parse
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all: mod-t-parse
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all: mod-ifelse-parse
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all: mod-remember-parse
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all: mod-sysv-parse
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mod-unknown-direct: print-header print-footer
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@echo 'want: Unknown modifier $'Z$''
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@echo 'VAR:Z=before-${VAR:Z}-after'
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mod-unknown-indirect: print-header print-footer
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@echo 'want: Unknown modifier $'Z$''
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@echo 'VAR:${MOD_UNKN}=before-${VAR:${MOD_UNKN}:inner}-after'
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unclosed-direct: print-header print-footer
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@echo 'want: Unclosed variable expression, expecting $'}$' for modifier "S,V,v," of variable "VAR" with value "Thevariable"'
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@echo VAR:S,V,v,=${VAR:S,V,v,
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unclosed-indirect: print-header print-footer
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@echo 'want: Unclosed variable expression after indirect modifier, expecting $'}$' for variable "VAR"'
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@echo VAR:${MOD_TERM},=${VAR:${MOD_S}
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unfinished-indirect: print-header print-footer
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@echo 'want: Unfinished modifier for VAR ($',$' missing)'
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-@echo "VAR:${MOD_TERM}=${VAR:${MOD_TERM}}"
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unfinished-loop: print-header print-footer
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@echo 'want: Unfinished modifier for UNDEF ($'@$' missing)'
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@echo ${UNDEF:U1 2 3:@var}
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@echo 'want: Unfinished modifier for UNDEF ($'@$' missing)'
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@echo ${UNDEF:U1 2 3:@var@...}
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@echo ${UNDEF:U1 2 3:@var@${var}@}
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# The closing brace after the ${var} is part of the replacement string.
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# In ParseModifierPart, braces and parentheses don't have to be balanced.
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# This is contrary to the :M, :N modifiers, where both parentheses and
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# braces must be balanced.
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# This is also contrary to the SysV modifier, where only the actually
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# used delimiter (either braces or parentheses) must be balanced.
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loop-close: print-header print-footer
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@echo ${UNDEF:U1 2 3:@var@${var}}...@
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@echo ${UNDEF:U1 2 3:@var@${var}}...@}
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words: print-header print-footer
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@echo 'want: Unfinished modifier for UNDEF ($']$' missing)'
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@echo ${UNDEF:U1 2 3:[}
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@echo 'want: Unfinished modifier for UNDEF ($']$' missing)'
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@echo ${UNDEF:U1 2 3:[#}
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# out of bounds => empty
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@echo 13=${UNDEF:U1 2 3:[13]}
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# Word index out of bounds.
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#
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# Until 2020-11-01, the behavior in this case depended upon the size
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# of unsigned long.
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#
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# On LP64I32, strtol returns LONG_MAX, which was then truncated to
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# int (undefined behavior), typically resulting in -1. This -1 was
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# interpreted as "the last word".
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#
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# On ILP32, strtol returns LONG_MAX, which is a large number. This
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# resulted in a range from LONG_MAX - 1 to 3, which was empty.
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#
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# Since 2020-11-01, the numeric overflow is detected and generates an
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# error. In the remainder of the text, the '$,' is no longer parsed
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# as part of a variable modifier, where it would have been interpreted
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# as an anchor to the :S modifier, but as a normal variable named ','.
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# That variable is undefined, resulting in an empty string.
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@echo 12345=${UNDEF:U1 2 3:[123451234512345123451234512345]:S,^$,ok,:S,^3$,ok,}
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exclam: print-header print-footer
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@echo 'want: Unfinished modifier for VARNAME ($'!$' missing)'
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@echo ${VARNAME:!echo}
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# When the final exclamation mark is missing, there is no
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# fallback to the SysV substitution modifier.
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# If there were a fallback, the output would be "exclam",
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# and the above would have produced an "Unknown modifier '!'".
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@echo 'want: Unfinished modifier for ! ($'!$' missing)'
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@echo ${!:L:!=exclam}
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mod-subst-delimiter: print-header print-footer
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@echo 1: ${VAR:S
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@echo 2: ${VAR:S,
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@echo 3: ${VAR:S,from
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@echo 4: ${VAR:S,from,
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@echo 5: ${VAR:S,from,to
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@echo 6: ${VAR:S,from,to,
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@echo 7: ${VAR:S,from,to,}
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mod-regex-delimiter: print-header print-footer
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@echo 1: ${VAR:C
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@echo 2: ${VAR:C,
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@echo 3: ${VAR:C,from
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@echo 4: ${VAR:C,from,
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@echo 5: ${VAR:C,from,to
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@echo 6: ${VAR:C,from,to,
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@echo 7: ${VAR:C,from,to,}
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mod-ts-parse: print-header print-footer
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@echo ${FIB:ts}
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@echo ${FIB:ts\65} # octal 065 == U+0035 == '5'
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@echo ${FIB:ts\65oct} # bad modifier
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@echo ${:U${FIB}:ts\65oct} # bad modifier, variable name is ""
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@echo ${FIB:tsxy} # modifier too long
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mod-t-parse: print-header print-footer
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@echo ${FIB:t
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@echo ${FIB:txy}
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@echo ${FIB:t}
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@echo ${FIB:t:M*}
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mod-ifelse-parse: print-header print-footer
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@echo ${FIB:?
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@echo ${FIB:?then
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@echo ${FIB:?then:
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@echo ${FIB:?then:else
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@echo ${FIB:?then:else}
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mod-remember-parse: print-header print-footer
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@echo ${FIB:_} # ok
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@echo ${FIB:__} # modifier name too long
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mod-sysv-parse: print-header print-footer
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@echo ${FIB:3
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@echo ${FIB:3=
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@echo ${FIB:3=x3
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@echo ${FIB:3=x3} # ok
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print-header: .USEBEFORE
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@echo $@:
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print-footer: .USE
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@echo
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